Why is the lead information I received different from the postcard recipient’s info (name, address)?

There are a few possibilities, the:

1. Addressed recipient gave the postcard to someone they know.
2. Intended recipient no longer lives at that address & the current resident responded to it.
3. Homeowner doesn’t live there OR more than one person lives at that address and one of them used their information, which is different from the homeowner.